Quantitative three-dimensional reconstruction of catalyst particles for bamboo-like carbon nanotubes

被引：77

作者：

Bals, Sara ^{[1
]}

Batenburg, K. Joost ^{[2
]}

Verbeeck, Jo ^{[1
]}

Sijbers, Jan ^{[2
]}

Van Tendeloo, Gustaaf ^{[1
]}

机构：

[1] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium

[2] Univ Antwerp VIB, Vis Lab, B-2610 Antwerp, Belgium

来源：

NANO LETTERS | 2007年 / 7卷 / 12期

关键词：

D O I：

10.1021/nl071899m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The three-dimensional (3D) structure and chemical composition of bamboo-like carbon nanotubes including the catalyst particles that are. used during their growth are studied by discrete electron tomography in combination with energy-filtered transmission electron microscopy. It is found that cavities are present in the catalyst particles. Furthermore, only a small percentage of the catalyst particles consist of pure Cu, since a large volume fraction of the particles is oxidized to CU(2)0. These volume fractions are determined quantitatively from 3D reconstructions obtained by discrete tomography.

引用

页码：3669 / 3674

页数：6

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